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mining of lafia obi coal

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  • [PDF] Chemical Characteristics of Discharges from Two ...

    The menace of acid mine drainage: an impending challenge in the mining of Lafia-Obi coal, Nigeria. S. J. Mallo; Environmental Science; 2011; 13. Save. Alert. Research Feed. Acid mine drainage in an Indian high-sulfur coal mining area: Cytotoxicity assay and remediation study.

  • Gasification of Lafia-Obi Coal Using ANSYS Fluent As …

    2018-12-20 · Subsequent prospecting was conducted and twenty-two coal mine sites/deposits were discovered with varying reserves. Lafia/Obi coal is one of them with proven reserve of 21.42 million tonnes [3]. Lafia/Obi coal is bituminous and this grade of coal is important as fuel because it burns slowly, provides a lot of heat and is

  • (PDF) The Nigerian Coal Corporation: An Evaluation Of ...

     · The coal measures (Fig. 2) are concentrated within the Anambra Basin, but also occur in other rocks within Nigeria such as Lafia-Obi in Plateau state, …

  • [PDF] Assessment of Some Nigerian Coals for Metallurgical ...

    In the quest for a search of a suitable coal deposit of metallurgical importance, the qualities of three Nigerian coal samples, Lafia-Obi, Doho and Lamja, were assessed for possible utilization in metallurgical coke production. Several parameters that determine coking quality, such as moisture content, ash, volatile matter, free swelling index, sulphur content, Gray-King coke test, …

  • Geology, geochemistry and biomarker evaluation of Lafia ...

    2002-1-1 · However, there are few published papers on the Lafia-Obi coal. Obaje and Obaje et al. described the petrographic and depositional environments of the coal bearing strata of the Awgu Formation, and also subdivided the coal beds and interseam sediments into three different coal facies, namely: (a) vitrinite–fusinite, (b) trimaceritic and (c) shaly coal facies, respectively.

  • Assessment of Some Nigerian Coals for Metallurgical ...

    In the quest for a search of a suitable coal deposit of metallurgical importance, the qualities of three Nigerian coal samples, Lafia-Obi, Doho and Lamja, were assessed for possible utilization in metallurgical coke production. Several parameters that determine coking quality, such as moisture content, ash, volatile matter, free swelling index, sulphur content, Gray-King coke test, …

  • Emission and Combustion Characteristics of Lafia-Obi Coal ...

    The technology of fluidized bed coal combustion (FBC) and its advantages over conventional coal burning systems is now well established and is extensively reported in the literature. There is also some emphasis in literature about the suitability of Lafia-Obi coal in FBC. However, there is little quantitative or qualitative information on theperformance of Lafia-Obi in FBC.

  • NIGERIA COAL FEASIBILITY REPORT 031506

    2019-7-19 · Mailing and Delivery Address: 1000 Wilson Boulevard, Suite 1600, Arlington, VA 22209-3901 Phone: 703–875–4357 • Fax: 703–875–4009 • Web site: • email: [email protected] FEASIBILITY STUDY NIGERIAN COAL RESOURCE DEVELOPMENT Prepared for: Ministry of Solid Minerals Development Federal Republic of Nigeria

  • Characterization of Some Nigerian Coals for Power …

    Five coal samples from Odagbo (Kogi State), Owukpa (Benue State), Ezimo (Enugu State), Amansiodo (Enugu State), and Inyi (Enugu State) of Nigerian coal deposits were subjected to proximate analysis, ultimate analysis, calorific value determination, and petrographic and thermogravimetric analysis to determine their suitability for power generation.

  • Analysis of clean coal technology in Nigeria for energy ...

    coal mines in Nigeria, namely Onyeama, Ogwashi, Ezimo, Inyi, Amasiodo, Okaba, Lafia-Obi, Owukpa Owukpa, Ogboyoga and Okpara. The estimated reserves of these coal mines are 2.1Gt, i.e.. about 84% of the total estimated reserves of the 2.5 Gt of coal. The coal mines are open cast (surface mining) and underground [1].

  • WASHABILITY AND FROTH FLOTATION TESTS OF LAFIA-OBI

    Iron Ore Mining Process. WASHABILITY AND FROTH FLOTATION TESTS OF LAFIA-OBI . Abstract: Washability and froth flotation tests on Lafia-Obi Coal deposit Nasarawa State Froth flotation is the most important and versatile mineral dressing or. Chat. effect of key variables on coal cleaning by froth flotation technique.

  • About Nasarawa State – Official Website of Nasarawa State

    The Lafia-Obi coal which is of high-medium volatile bituminous rank with estimated reserves of 128.3million tonnes could be used to establish small sized modular coal-fired Independent Power Plants (IPPs) for the generation of electricity in the state.

  • COAL MINING AND THE ENVIRONMENTAL IMPACT OF …

    2021-6-29 · The impact of AMDs from Odagbo, Enugu and Lafia-obi coal mines in Kogi, Enugu and Nasarawa States, Nigeria respectively is reviewed in this section. A list of selected impacted areas in different continents is also presented in (Table 2) 3.1 Odagbo An analysis of drains from Odagbo coal mine was conducted. The levels of lead, nickel, cobalt,

  • (PDF) The Economic Cost of Dewatering of the "Hajvalia" …

    Development and Mining of the Lafia-Obi coal, Nige ria. s.l., Wilolud Journals. Mallo SJ, 2011 ) Mine Dewatering:A veritab le component in mine cost analy sis in the development

  • ` Printed in Nigeria THE MENACE OF ACID MINE ...

    2021-11-13 · Coal bearing beds (seams) within the Lower and Upper Coal Measures of the Agwu Formation. 20 Coal seams occur within the Lower Coal Measure while 16 are in the Upper Coal Measure. The deposit occurs within the Giza anticline and partly within the Obi syncline. Exploration. A geological and geophysical survey carried out (1:10,000).

  • Petrographic evaluation of the depositional environments ...

    Paralic coal beds occur intercalated within the Cretaceous systems in the area around Obi/Lafia of the middle Benue trough of Nigeria. The petrographic compositions of the coal beds indicate three ptrographic facies with different depositional environments. The coal beds at the bottom of the stratigraphical sequence, termed the vitrinite-fusinite coal facies, are rich in vitrinite, poor in ...

  • WASHABILITY AND FROTH FLOTATION TESTS OF LAFIA …

    2013-5-28 · Lafia-Obi coal, the only local coal with good coking properties is however laden with excessive ash and sulphur contents of about 26.3% and 2.3% respectively (Taskforce, 1987). The Lafia-Obi coal deposit has been found to be geologically faulty and the minimum estimated cost of mining it per ton was at N87.50 as at 1977 (Taskforce, 1987).

  • PETROGRAPHIC COMPOSITION AND DEPOSITIONAL …

    2015-11-10 · Petrographic composition and Facies Diagram of the Obi/Lafia coals based on Maceral Group. 14. DEPOSITONAL ENVIRONMENTS Current coal paleoenvironmental analyses are based mainly on: the indices of the Tissue …

  • Data evaluation of trace elements determined in Nigerian ...

    High segregation of coal fly ash was observed, while metallurgical coal grouped together with high-ranking coals of Okaba, Enugu and Obi (Lafia). Further work revealed some of these coals as having high gross calorific value (7908 kcal kg(-1) for Enugu coal; 7200 kcal kg(-1) for Okaba) and low sulphur thereby making them efficient fuel materials.

  • INVESTIGATION: Despite 36 mining licences, 10,000MW …

    2019-12-24 · While the former has a permit for coal, lead and zinc in Obi and Lafia, the later has a Small-scale Mining (SM) licence for coal in Lafia. A survey across their sites in the state showed nothing significant in mining activities. Further checks indicated that the coal licenses held by both firms were for the purpose of generating energy and ...

  • After leaving the club, she tripped, fell, and lost ...

    2021-11-27 · A video showing how a woman died at Obi Cuban''s Hustle & Bustle club has been released. In the video, the lady, in a red dress, is seen leaving the club with two male friends. They appear to be in good spirits and are seen playing around before the lady runs forward, trips, falls, then loses consciousness.

  • Assessment of Some Nigerian Coals for Metallurgical ...

    2021-10-21 · In the quest for a search of a suitable coal deposit of metallurgical importance, the qualities of three Nigerian coal samples, Lafia-Obi, Doho and Lamja, were assessed for possible utilization in metallurgical coke production. Several parameters that determine coking quality, such as moisture content, ash, volatile matter, free swelling index, sulphur content, Gray-King coke …

  • Geology, geochemistry and biomarker evaluation of Lafia ...

    Geology, geochemistry and biomarker evaluation of Lafia-Obi coal, Benue Trough, Nigeria. OLUGBENGA A EHINOLA. D. Oros. C. Ekweozor. OLUGBENGA A EHINOLA. D. Oros. C. Ekweozor. Related Papers. Aspects of organic geochemistry of Nigerian coal as a potential source-rock of petroleum. By Taofik Adedosu.

  • ENERGY OUTPUT ASSESSMENT OF LAFIA-OBI COAL IN A …

    ENERGY OUTPUT ASSESSMENT OF LAFIA-OBI COAL IN A FLUIDIZED BED COMBUSTOR E. O Ilyas, et al Nigerian Journal of Technology Vol. 37, No. 4, October, 2018 968 Figure 1: Electricity demand projection in Nigeria (Sambo, 2008) Therefore, its value must be monitored and maintained

  • Current Approaches for Mitigating Acid Mine Drainage ...

    2013-3-29 · Mallo SJ (2011) The menace of acid mine drainage: an impending challenge in the mining of Lafia-obi coal, Nigeria. Continental J Eng Sci 6:46–54 Google Scholar Martin J, Fyfe J (2011) Innovative closure concepts for xstrata nickel onaping operations, presentation in Sudbury 2011, mining and the environment international conference V, 25–30 ...

  • (PDF) Quality of Some Nigerian Coals as Blending Stock in ...

    Based on the maceral composition, three types of coal facies have been identified in the Obi/Lafia area: 1 .A vitrinite-dominated coal facies, in which vitrinite …

  • Potential heavy metal pollution of soil and water ...

    2019-4-1 · The Menace of acid mine drainage: an impending challenge in the mining of Lafia-Obi coal, Nigeria Cont. J. Eng. Sci., 6 ( 3 ) ( 2011 ), pp. 2141 - 4068 Google Scholar

  • Physical and Plastic Properties of Three Nigerian Coals

    Lafia-Obi coal has the lowest volatile matter of 22.25%, followed by Onyeama Sample with values of 34.97% and Garin Maiganga (Gombe) with 37.05% while percentage volatile matter for semi-cokes are 3.71% for Onyeama, 2.42% for …

  • Nasarawa to Generate 1,000MW Electricity from Coal …

    2019-8-12 · Igbawase Ukumba in Lafia. ... to utilize the coal reserves in Obi Local Government Area of the state to generate 1,000 megawatts of electricity. ... "The power generation project will not just ...

  • Quality of Some Nigerian Coals as Blending Stock in ...

    2013-12-24 · coal samples. The volatile matter of Lafia-Obi coal is close to that of the foreign coals; while a large difference exists between Chikila coal and the foreign ones. It was observed elsewhere that the Lafia-Obi coal is higher in maturity than the Chikila coal [17] and volatile matter is known to decrease with increase in rank [18,19].

  • Computational fluid dynamics simulation of Lafia–Obi ...

    2015-1-15 · The coal was taken from the Lafia–Obi site in the MBT of Nigeria; the coal particle sizes varied from 10 mm to 25 mm. The schematic description of the fluidized-bed combustion is given in Fig. 1 . In order to enhance the combustion the air inflow is divided by two lines.

  • Physical and Plastic Properties of Three Nigerian Coals

    Results obtained revealed that the moisture content of Onyeama, Lafia-Obi and Garin Maiganga coal are 3.03, 2.93 and 6.35%, respectively with corresponding ash content of the semi-coke as 25.10, 28.54 and 42.01% in that order. x-ray fluorescence revealed high mineral matter content with highest concentration of copper and lead (10400 and 32500 ...

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